Wessington Springs herald. (Wessington Springs, Aurora County, Dakota [S.D.]) 1883-1891, 1887-12-30
MECHANICAL

IS now made by combining tvelSa glue
81 good glue and five parts ~ ). parts
The glue is boiled until il il en susas.
dissolved, the sugar is then n .u'tely
the glue, and the mass is ev NV into
until it is found to become ha 0,ased
cooling. Lukewarm water m na1a o. y
very readily, and the article n.s 1t
excellent for use in causing n, ps0Ve'
adhere firmly. cleanly, and r wi., %
producing the sliehtest disan rasnout
odor. eeaole
An electric trumpet has ha..
Gently devised by NJ. Zigang T, su Ne re-
ture. June a. It consists Of = ma IA,
brass tube mounted on wood and 'uOfs
tanning an electro-magnet whose a sOa'
face vibrating plate, on which il s suas
small piece of soft iron. Against Aa S:'
plate armature rests a repn1st ta's
screw with PLATINUM point wh;ag
serves for automatic interrnnt;on su
vibration of the armature. WEI IVY ~
Leclanche elements musical souna e :.
had, which may be varied in pitcb G ~ -
tensity. and timber by means ~ ~
the screw. This instrument NAV H. H.
usefully employed in signaling W. w.
ships, railways, tramways, etc; i nav
also serve as receiver for aipnals =
the Morse type.
The new sewing-machine con5oas ssl n
by an Edinburgh inventor claims y
the simplest yet made for effect;ns III
lock-stitch. 1t is on the rotar; sbntth
principle, the novelty OF It lying IN 1 .
circular saucer-shaped shuttle, which
is set upon edge, and laid with its fiat
side against the left-hand end Of the
lower shaft, which is held in position
by a revolving cup. The axis Of tbe
shaft, the shuttle and the cup being in
line, and revolving together, the result
is all easy motion far excelling the old
reciprocating shuttle The machine
may be said to be constructed on the
rotary system, for, as described, nearly
every part rotates, which, it is said,
renders the motions easy and light, and
makes it capable of a much highe,
speed than any lock-stitch machine
hitherto in use.
HE expensive outdoor use of zinc III
builders at the present time has d.
rected attention to the peculiar process
ef oxidation which this metal under.
goes, and which is so important to be
considered in all applications involving
exposure. The rusted surface does not
rub off or blow away, but forms sort
of hard crust or enamel upon the sur
face of the metal, and when laid upon
boarding which is or may become damp
p, or exposed to steam or condensation
below, it rusts on both Sides The thin
zines first introduced in this way were
rusted through, brittleness ensuing,
and failure being the result. But if
the zinc be of sufficient thickness, after
o certain time oxidation ceases, aud THE
result is q body of solid, sound metal,
encased above and below by solid
coating, thoroughly impermeable to the
accidents of weather or Temperature
and which requires no painting. The
various ways of spreading zinc consist
mainly in laying it in corrugated
form without boarding, the trusses d
iron or wood of the roof carrying tho
weight, or in rafters about one foot
more or less apart, with corrugation
at each rafter only. or upon general
surface of boarding, in the manner Of
lead fiat.
We feel prepared to maintain that
relatively long limbs with short body,
full chest, and small bones, will char
acterize the typical short-distsnce !
runner wherever he may be found J
Short races GOO, 900, and 40 yards
are often won by few inches, and the
value of an inch OF two in runners
stride is of the greatest importance
for, other qualifications being equal
this man is bound to be first at the
goal.
The small girth of the legs of run
ners is often mystifying. From the
girth of muscle we get correctlde'
of its volume or transverse diameters
but learn little Of its length and the
extent of its contractile tibefs
Whereas it is the length of the muscle
and not the thickness, that is OF slgnln
cdhce to short-distance runners. Given
the physiological fact that muscle
can contract about one-third OF 10
length, it will readily be seen that 'nS
longer the muscle the greater Will W
the movement of the part to whlcn
is attached. To the runner tho de
sired movement is in the elevation u
the thigh and the extension and neSlou
of the leg and foot. An instantaneous
photograph of sprint-nlnners shoS'
that the range in the movement OF tue 10
limbs is very extensive-the sffla7 -
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